PSI - Issue 77

P.D.A. da Silva et al. / Procedia Structural Integrity 77 (2026) 103–110 Silva et al. / Structural Integrity Procedia 00 (2026) 000–000

110

8

Table 5. E a comparison between adhesives.

AV138

DP8005

XNR6852 E-2

β ( ο )

E a (J)

∆ E a (J)

E a (J)

∆ E a (J) +76.7% +70.6% +51.4%

E a (J)

∆ E a (J)

7.5 o 15 o 30 o 45 o 60 o 90 o

17.0 12.0

+340.6% +209.9% +110.4% +61.7% +35.3%

7.6 7.4 6.5 5.8 5.4 4.3

16.4 10.4

+328.2% +171.3% +88.0% +45.3% +30.3%

8.1 6.2 5.2 3.9

7.2 5.6 5.0 3.8

+35%

+24.1%

-

-

-

4. Conclusions This study provided a numerical analysis of tubular adhesive joints under impact loading. The CZM approach was initially successfully validated with experiments. The CZM simulations on the design parameters demonstrated that appropriate geometrical adjustments can significantly enhance the load-bearing capacity and impact strength. The addition of adhesive fillets proved to be the only design parameter to improve the overall joint performance. The P m improvement over the no fillet condition was highest for the AV138 (stiffest adhesive), reaching almost 75% improvement. E a data followed the same tendency, with over 340%, although quickly followed by the XNR6852 E 2. Oppositely, both chamfers (inner and outer) were harmful to P m : up to 18.0% and 22.5% maximum reductions, respectively, always for the joints with the DP8005. E a was also negatively affected: up to 50.7% for the inner chamfer design (AV138) and 36.1% for the outer chamfer (DP8005). References Adediran, I., Fritz, J., Truster, T. (2025) "Comparative Analysis of Different Adhesive Model Representations in Single Lap Joints Using Finite Element Analysis." Applied Sciences 15 DOI: 10.3390/app15052661. Campilho, R. D. S. G., Banea, M. D., Neto, J. A. B. P., da Silva, L. F. M., 2013. Modelling adhesive joints with cohesive zone models: effect of the cohesive law shape of the adhesive layer. International Journal of Adhesion & Adhesives 44: 48-56. Daissè, G., Abali, B. E., Wan-Wendner, R., 2024. Tensile and shear creep behavior of structural adhesives: experiments and modeling. Applied Composite Materials 31(2): 739-764. Eusébio, S. M. L., Campilho, R. D. S. G., 2019. Modelling of tubular adhesively-bonded joints by the Extended Finite Element Method. Procedia Manufacturing 41: 484-491. Ghandriz, R., Hart, K., Li, J., 2020. Extended finite element method (XFEM) modeling of fracture in additively manufactured polymers. Additive Manufacturing 31: 100945. Lavalette, N. P., Bergsma, O. K., Zarouchas, D., Benedictus, R., 2020. Influence of geometrical parameters on the strength of Hybrid CFRP aluminium tubular adhesive joints. Composite Structures 240: 112077. Oliveira, T. J. S., Campilho, R. D. S. G., Cardoso, M. G., 2021. Three-dimensional numerical analysis of tubular adhesive joints under torsional loads. IOP Conference Series: Materials Science and Engineering 1193(1): 012082. Pinheiro, A. E. S., Campilho, R. D. S. G., Moreira, R. D. F., Sánchez-Arce, I. J., 2022. Validation of theoretical models for the strength prediction of tubular adhesive joints. Procedia Structural Integrity 41: 60-71. Quini, J. G., Marinucci, G., 2012. Polyurethane structural adhesives applied in automotive composite joints. Materials research 15: 434-439. Rosas, M. F. M. O., Campilho, R. D. S. G., Moreira, R. D. F., 2021. Numerical analysis of geometrical modification combinations of the tensile strength of tubular adhesive joints. Procedia Structural Integrity 33: 115-125. Rudawska, A., Wahab, M. A., 2021. Mechanical Properties of Adhesive Joints Made with Pressure-Sensitive Adhesives. Journal of Mechanical Engineering/Strojniški Vestnik 67. Silva, A. F. M. V., Peres, L. M. C., Campilho, R. D. S. G., Rocha, R. J. B., 2021. Impact loading analysis of tubular adhesive joints. Procedia Structural Integrity 33: 138-148. Spaggiari, A., Orlandini, S. (2024) "Mechanical Strength of Additive Manufactured and Standard Polymeric Components Joined Through Structural Adhesives." Polymers 16 DOI: 10.3390/polym16213036. Sukhaya, T., Aimmanee, S., 2022. A unified theory of adhesive-bonded tubular joints with dissimilar adherends subjected to a multiplicity of axisymmetric loads. International Journal of Adhesion and Adhesives 112: 102991. Valente, J. P. A., Campilho, R. D. S. G., Marques, E. A. S., Machado, J. J. M., da Silva, L. F. M., 2019. Adhesive joint analysis under tensile impact loads by cohesive zone modelling. Composite Structures 222: 110894.